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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkImage_Base.h" | 8 #include "SkImage_Base.h" |
9 #include "SkBitmap.h" | 9 #include "SkBitmap.h" |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
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56 if (0 == size) { | 56 if (0 == size) { |
57 return false; | 57 return false; |
58 } | 58 } |
59 | 59 |
60 if (minSize) { | 60 if (minSize) { |
61 *minSize = size; | 61 *minSize = size; |
62 } | 62 } |
63 return true; | 63 return true; |
64 } | 64 } |
65 | 65 |
66 SkImage_Raster(const SkImageInfo&, SkData*, size_t rb, SkColorTable*, const
SkSurfaceProps*); | 66 SkImage_Raster(const SkImageInfo&, SkData*, size_t rb, SkColorTable*); |
67 virtual ~SkImage_Raster(); | 67 virtual ~SkImage_Raster(); |
68 | 68 |
69 bool onReadPixels(const SkImageInfo&, void*, size_t, int srcX, int srcY) con
st override; | 69 bool onReadPixels(const SkImageInfo&, void*, size_t, int srcX, int srcY) con
st override; |
70 const void* onPeekPixels(SkImageInfo*, size_t* /*rowBytes*/) const override; | 70 const void* onPeekPixels(SkImageInfo*, size_t* /*rowBytes*/) const override; |
71 SkData* onRefEncoded() const override; | 71 SkData* onRefEncoded() const override; |
72 bool getROPixels(SkBitmap*) const override; | 72 bool getROPixels(SkBitmap*) const override; |
73 GrTexture* asTextureRef(GrContext*, SkImageUsageType) const override; | 73 GrTexture* asTextureRef(GrContext*, SkImageUsageType) const override; |
74 SkImage* onNewSubset(const SkIRect&) const override; | 74 SkImage* onNewSubset(const SkIRect&) const override; |
75 | 75 |
76 // exposed for SkSurface_Raster via SkNewImageFromPixelRef | 76 // exposed for SkSurface_Raster via SkNewImageFromPixelRef |
77 SkImage_Raster(const SkImageInfo&, SkPixelRef*, const SkIPoint& pixelRefOrig
in, size_t rowBytes, | 77 SkImage_Raster(const SkImageInfo&, SkPixelRef*, const SkIPoint& origin, size
_t rowBytes); |
78 const SkSurfaceProps*); | |
79 | 78 |
80 SkPixelRef* getPixelRef() const { return fBitmap.pixelRef(); } | 79 SkPixelRef* getPixelRef() const { return fBitmap.pixelRef(); } |
81 | 80 |
82 bool isOpaque() const override; | 81 bool isOpaque() const override; |
83 bool onAsLegacyBitmap(SkBitmap*, LegacyBitmapMode) const override; | 82 bool onAsLegacyBitmap(SkBitmap*, LegacyBitmapMode) const override; |
84 | 83 |
85 SkImage_Raster(const SkBitmap& bm, const SkSurfaceProps* props) | 84 SkImage_Raster(const SkBitmap& bm) |
86 : INHERITED(bm.width(), bm.height(), bm.getGenerationID(), props) | 85 : INHERITED(bm.width(), bm.height(), bm.getGenerationID()) |
87 , fBitmap(bm) | 86 , fBitmap(bm) |
88 { | 87 { |
89 if (bm.pixelRef()->isPreLocked()) { | 88 if (bm.pixelRef()->isPreLocked()) { |
90 // we only preemptively lock if there is no chance of triggering som
ething expensive | 89 // we only preemptively lock if there is no chance of triggering som
ething expensive |
91 // like a lazy decode or imagegenerator. PreLocked means it is flat
pixels already. | 90 // like a lazy decode or imagegenerator. PreLocked means it is flat
pixels already. |
92 fBitmap.lockPixels(); | 91 fBitmap.lockPixels(); |
93 } | 92 } |
94 SkASSERT(fBitmap.isImmutable()); | 93 SkASSERT(fBitmap.isImmutable()); |
95 } | 94 } |
96 | 95 |
97 bool onIsLazyGenerated() const override { | 96 bool onIsLazyGenerated() const override { |
98 return fBitmap.pixelRef() && fBitmap.pixelRef()->isLazyGenerated(); | 97 return fBitmap.pixelRef() && fBitmap.pixelRef()->isLazyGenerated(); |
99 } | 98 } |
100 | 99 |
101 private: | 100 private: |
102 SkImage_Raster() : INHERITED(0, 0, kNeedNewImageUniqueID, nullptr) { | 101 SkBitmap fBitmap; |
103 fBitmap.setImmutable(); | |
104 } | |
105 | |
106 SkBitmap fBitmap; | |
107 | 102 |
108 typedef SkImage_Base INHERITED; | 103 typedef SkImage_Base INHERITED; |
109 }; | 104 }; |
110 | 105 |
111 /////////////////////////////////////////////////////////////////////////////// | 106 /////////////////////////////////////////////////////////////////////////////// |
112 | 107 |
113 static void release_data(void* addr, void* context) { | 108 static void release_data(void* addr, void* context) { |
114 SkData* data = static_cast<SkData*>(context); | 109 SkData* data = static_cast<SkData*>(context); |
115 data->unref(); | 110 data->unref(); |
116 } | 111 } |
117 | 112 |
118 SkImage_Raster::SkImage_Raster(const Info& info, SkData* data, size_t rowBytes, | 113 SkImage_Raster::SkImage_Raster(const Info& info, SkData* data, size_t rowBytes, |
119 SkColorTable* ctable, const SkSurfaceProps* props
) | 114 SkColorTable* ctable) |
120 : INHERITED(info.width(), info.height(), kNeedNewImageUniqueID, props) | 115 : INHERITED(info.width(), info.height(), kNeedNewImageUniqueID) |
121 { | 116 { |
122 data->ref(); | 117 data->ref(); |
123 void* addr = const_cast<void*>(data->data()); | 118 void* addr = const_cast<void*>(data->data()); |
124 | 119 |
125 fBitmap.installPixels(info, addr, rowBytes, ctable, release_data, data); | 120 fBitmap.installPixels(info, addr, rowBytes, ctable, release_data, data); |
126 fBitmap.setImmutable(); | 121 fBitmap.setImmutable(); |
127 fBitmap.lockPixels(); | 122 fBitmap.lockPixels(); |
128 } | 123 } |
129 | 124 |
130 SkImage_Raster::SkImage_Raster(const Info& info, SkPixelRef* pr, const SkIPoint&
pixelRefOrigin, | 125 SkImage_Raster::SkImage_Raster(const Info& info, SkPixelRef* pr, const SkIPoint&
pixelRefOrigin, |
131 size_t rowBytes, const SkSurfaceProps* props) | 126 size_t rowBytes) |
132 : INHERITED(info.width(), info.height(), pr->getGenerationID(), props) | 127 : INHERITED(info.width(), info.height(), pr->getGenerationID()) |
133 { | 128 { |
134 fBitmap.setInfo(info, rowBytes); | 129 fBitmap.setInfo(info, rowBytes); |
135 fBitmap.setPixelRef(pr, pixelRefOrigin); | 130 fBitmap.setPixelRef(pr, pixelRefOrigin); |
136 fBitmap.lockPixels(); | 131 fBitmap.lockPixels(); |
137 SkASSERT(fBitmap.isImmutable()); | 132 SkASSERT(fBitmap.isImmutable()); |
138 } | 133 } |
139 | 134 |
140 SkImage_Raster::~SkImage_Raster() {} | 135 SkImage_Raster::~SkImage_Raster() {} |
141 | 136 |
142 bool SkImage_Raster::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, s
ize_t dstRowBytes, | 137 bool SkImage_Raster::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, s
ize_t dstRowBytes, |
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216 | 211 |
217 SkImage* SkImage::NewRasterCopy(const SkImageInfo& info, const void* pixels, siz
e_t rowBytes, | 212 SkImage* SkImage::NewRasterCopy(const SkImageInfo& info, const void* pixels, siz
e_t rowBytes, |
218 SkColorTable* ctable) { | 213 SkColorTable* ctable) { |
219 size_t size; | 214 size_t size; |
220 if (!SkImage_Raster::ValidArgs(info, rowBytes, ctable != nullptr, &size) ||
!pixels) { | 215 if (!SkImage_Raster::ValidArgs(info, rowBytes, ctable != nullptr, &size) ||
!pixels) { |
221 return nullptr; | 216 return nullptr; |
222 } | 217 } |
223 | 218 |
224 // Here we actually make a copy of the caller's pixel data | 219 // Here we actually make a copy of the caller's pixel data |
225 SkAutoDataUnref data(SkData::NewWithCopy(pixels, size)); | 220 SkAutoDataUnref data(SkData::NewWithCopy(pixels, size)); |
226 return new SkImage_Raster(info, data, rowBytes, ctable, nullptr); | 221 return new SkImage_Raster(info, data, rowBytes, ctable); |
227 } | 222 } |
228 | 223 |
229 | 224 |
230 SkImage* SkImage::NewRasterData(const SkImageInfo& info, SkData* data, size_t ro
wBytes) { | 225 SkImage* SkImage::NewRasterData(const SkImageInfo& info, SkData* data, size_t ro
wBytes) { |
231 size_t size; | 226 size_t size; |
232 if (!SkImage_Raster::ValidArgs(info, rowBytes, false, &size) || !data) { | 227 if (!SkImage_Raster::ValidArgs(info, rowBytes, false, &size) || !data) { |
233 return nullptr; | 228 return nullptr; |
234 } | 229 } |
235 | 230 |
236 // did they give us enough data? | 231 // did they give us enough data? |
237 if (data->size() < size) { | 232 if (data->size() < size) { |
238 return nullptr; | 233 return nullptr; |
239 } | 234 } |
240 | 235 |
241 SkColorTable* ctable = nullptr; | 236 SkColorTable* ctable = nullptr; |
242 return new SkImage_Raster(info, data, rowBytes, ctable, nullptr); | 237 return new SkImage_Raster(info, data, rowBytes, ctable); |
243 } | 238 } |
244 | 239 |
245 SkImage* SkImage::NewFromRaster(const SkImageInfo& info, const void* pixels, siz
e_t rowBytes, | 240 SkImage* SkImage::NewFromRaster(const SkImageInfo& info, const void* pixels, siz
e_t rowBytes, |
246 RasterReleaseProc proc, ReleaseContext ctx) { | 241 RasterReleaseProc proc, ReleaseContext ctx) { |
247 size_t size; | 242 size_t size; |
248 if (!SkImage_Raster::ValidArgs(info, rowBytes, false, &size) || !pixels) { | 243 if (!SkImage_Raster::ValidArgs(info, rowBytes, false, &size) || !pixels) { |
249 return nullptr; | 244 return nullptr; |
250 } | 245 } |
251 | 246 |
252 SkColorTable* ctable = nullptr; | 247 SkColorTable* ctable = nullptr; |
253 SkAutoDataUnref data(SkData::NewWithProc(pixels, size, proc, ctx)); | 248 SkAutoDataUnref data(SkData::NewWithProc(pixels, size, proc, ctx)); |
254 return new SkImage_Raster(info, data, rowBytes, ctable, nullptr); | 249 return new SkImage_Raster(info, data, rowBytes, ctable); |
255 } | 250 } |
256 | 251 |
257 SkImage* SkNewImageFromPixelRef(const SkImageInfo& info, SkPixelRef* pr, | 252 SkImage* SkNewImageFromPixelRef(const SkImageInfo& info, SkPixelRef* pr, |
258 const SkIPoint& pixelRefOrigin, size_t rowBytes, | 253 const SkIPoint& pixelRefOrigin, size_t rowBytes)
{ |
259 const SkSurfaceProps* props) { | |
260 if (!SkImage_Raster::ValidArgs(info, rowBytes, false, nullptr)) { | 254 if (!SkImage_Raster::ValidArgs(info, rowBytes, false, nullptr)) { |
261 return nullptr; | 255 return nullptr; |
262 } | 256 } |
263 return new SkImage_Raster(info, pr, pixelRefOrigin, rowBytes, props); | 257 return new SkImage_Raster(info, pr, pixelRefOrigin, rowBytes); |
264 } | 258 } |
265 | 259 |
266 SkImage* SkNewImageFromRasterBitmap(const SkBitmap& bm, const SkSurfaceProps* pr
ops, | 260 SkImage* SkNewImageFromRasterBitmap(const SkBitmap& bm, ForceCopyMode forceCopy)
{ |
267 ForceCopyMode forceCopy) { | |
268 SkASSERT(nullptr == bm.getTexture()); | 261 SkASSERT(nullptr == bm.getTexture()); |
269 | 262 |
270 bool hasColorTable = false; | 263 bool hasColorTable = false; |
271 if (kIndex_8_SkColorType == bm.colorType()) { | 264 if (kIndex_8_SkColorType == bm.colorType()) { |
272 SkAutoLockPixels autoLockPixels(bm); | 265 SkAutoLockPixels autoLockPixels(bm); |
273 hasColorTable = bm.getColorTable() != nullptr; | 266 hasColorTable = bm.getColorTable() != nullptr; |
274 } | 267 } |
275 | 268 |
276 if (!SkImage_Raster::ValidArgs(bm.info(), bm.rowBytes(), hasColorTable, null
ptr)) { | 269 if (!SkImage_Raster::ValidArgs(bm.info(), bm.rowBytes(), hasColorTable, null
ptr)) { |
277 return nullptr; | 270 return nullptr; |
278 } | 271 } |
279 | 272 |
280 SkImage* image = nullptr; | 273 SkImage* image = nullptr; |
281 if (kYes_ForceCopyMode == forceCopy || !bm.isImmutable()) { | 274 if (kYes_ForceCopyMode == forceCopy || !bm.isImmutable()) { |
282 SkBitmap tmp(bm); | 275 SkBitmap tmp(bm); |
283 tmp.lockPixels(); | 276 tmp.lockPixels(); |
284 if (tmp.getPixels()) { | 277 if (tmp.getPixels()) { |
285 image = SkImage::NewRasterCopy(tmp.info(), tmp.getPixels(), tmp.rowB
ytes(), | 278 image = SkImage::NewRasterCopy(tmp.info(), tmp.getPixels(), tmp.rowB
ytes(), |
286 tmp.getColorTable()); | 279 tmp.getColorTable()); |
287 } | 280 } |
288 | |
289 // we don't expose props to NewRasterCopy (need a private vers) so post-
init it here | |
290 if (image && props) { | |
291 as_IB(image)->initWithProps(*props); | |
292 } | |
293 } else { | 281 } else { |
294 image = new SkImage_Raster(bm, props); | 282 image = new SkImage_Raster(bm); |
295 } | 283 } |
296 return image; | 284 return image; |
297 } | 285 } |
298 | 286 |
299 const SkPixelRef* SkBitmapImageGetPixelRef(const SkImage* image) { | 287 const SkPixelRef* SkBitmapImageGetPixelRef(const SkImage* image) { |
300 return ((const SkImage_Raster*)image)->getPixelRef(); | 288 return ((const SkImage_Raster*)image)->getPixelRef(); |
301 } | 289 } |
302 | 290 |
303 bool SkImage_Raster::isOpaque() const { | 291 bool SkImage_Raster::isOpaque() const { |
304 return fBitmap.isOpaque(); | 292 return fBitmap.isOpaque(); |
305 } | 293 } |
306 | 294 |
307 bool SkImage_Raster::onAsLegacyBitmap(SkBitmap* bitmap, LegacyBitmapMode mode) c
onst { | 295 bool SkImage_Raster::onAsLegacyBitmap(SkBitmap* bitmap, LegacyBitmapMode mode) c
onst { |
308 if (kRO_LegacyBitmapMode == mode) { | 296 if (kRO_LegacyBitmapMode == mode) { |
309 // When we're a snapshot from a surface, our bitmap may not be marked im
mutable | 297 // When we're a snapshot from a surface, our bitmap may not be marked im
mutable |
310 // even though logically always we are, but in that case we can't physic
ally share our | 298 // even though logically always we are, but in that case we can't physic
ally share our |
311 // pixelref since the caller might call setImmutable() themselves | 299 // pixelref since the caller might call setImmutable() themselves |
312 // (thus changing our state). | 300 // (thus changing our state). |
313 if (fBitmap.isImmutable()) { | 301 if (fBitmap.isImmutable()) { |
314 bitmap->setInfo(fBitmap.info(), fBitmap.rowBytes()); | 302 bitmap->setInfo(fBitmap.info(), fBitmap.rowBytes()); |
315 bitmap->setPixelRef(fBitmap.pixelRef(), fBitmap.pixelRefOrigin()); | 303 bitmap->setPixelRef(fBitmap.pixelRef(), fBitmap.pixelRefOrigin()); |
316 return true; | 304 return true; |
317 } | 305 } |
318 } | 306 } |
319 return this->INHERITED::onAsLegacyBitmap(bitmap, mode); | 307 return this->INHERITED::onAsLegacyBitmap(bitmap, mode); |
320 } | 308 } |
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